<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
</head>
<body>

<script type="text/javascript">

// var str='你好js';
// console.log( typeof str);
// console.log( typeof (str) );

// var str='12';
// console.log( typeof str);

// var num=12;
// console.log( typeof num);

// var bol=true;
// console.log(bol,typeof bol);

// var un;
// console.log( typeof un);

// var nul=null;
// console.log(typeof nul);

var obj=new Object();
var arr=[1,2,3,];
var fun=function(){
	
}
console.log( typeof obj, typeof arr ,typeof fun );

</script>

</body>
</html>